It was _____ computer games that cost the boy a lot of time that he ought to have spent on his lessons.
| A．to have played | B．playing | C．played | D．having played |
Peter has gone to Beijing, but I’m wondering why he ________ in such a hurry.
| A．left | B．has left | C．leaves | D．was leaving |
—My family usually holds a big party for my birthday, but I want to try a different way this year.
—________
| A．It's your business. | B．Come along! | C．Like what? | D．So what? |
Only when________ possible to settle the problem.
| A．does the chief editor come will it be | B．the chief editor comes will it be |
| C．has the chief editor come it will be | D．the chief editor comes it will be |
They are still very cautious about ______ side effect the new medicine will bring about, although the experts have tried it on about 2,000 patients.
| A．which | B．that | C．where | D．what |
In the job interviews, job applicants often find themselves ________ unexpected questions, some very difficult to answer.
| A．to ask | B．asked | C．to be asked | D．asking |